Her Majesty Queen Rania Al Abdullah of Jordan will make a rare public appearance at Borders bookstore at Columbus Circle in New York City on April 27 to promote her children’s book The Sandwich Swap.

In the story, based on part of the Queen’s own personal experiences, Lily and Salma are best friends. They play together and stick together through thick and thin. But who would have ever thought that ordinary peanut butter or plain old hummus could come between them? Lily and Salma don’t quite understand each other’s tastes, but does that mean they can’t be friends? They understand far better than a lot of grown-ups that these things hardly matter and that friendship is the most important thing of all.

A wristband is required to sit within the specially designated storytime area at the store which takes place at 3:30 pm. The store will begin issuing the wristbands on a first-come-first-served basis when it opens at 9 am on April 27. A wristband is not required to access the signing line.